Amazon Relational Database Service (Amazon RDS) now supports M6id and R6id database (DB) instances for RDS for PostgresSQL, MySQL, and MariaDB. Amazon RDS M6id and R6id DB instances provide up to a 24% performance improvement and up to a 13% price/performance improvement (based on on-demand pricing) over Amazon RDS M5d and R5d DB instances for open-source databases depending on database engine, version, and workload. These instances support local block storage with up to 7.6 TB of NVMe-based solid state disk (SSD) storage.
Source:: Amazon AWS